Rachel let out a guttural moan as my cock slid into her. She was so wet I couldn't tell if she was tighter than her sister. Her pussy squeezed me like a vice as she erupted with her first orgasm of the night. I picked up the pace.
"Ohhhhh, mmmmy goooooooodddd," Rachel screamed as a second climax made her entire body shake. I couldn't help but smile, as I reached down and grabbed one of her ass cheeks so I could push myself in deeper. I kept our pelvises together, making short, deep strokes, while also grinding small circles that I knew would set her clit on fire.
"Fuuuuuuuck," Rachel moaned slowly as her body started to tremble again. It was a slow, rolling orgasm that seemed to go on for minutes. When it ended, her head flopped back. "That was the best orgasm I've ever had."
I looked up to smile at one of the cameras, then stared Rachel in the eyes. "There's a lot more where that came from," I said with a smirk.
Her eyes focused on me for a second, and she pushed one of my shoulders, hard. "I need to be on top," she said, and I rolled with her so she could ride me.
It was truly a beautiful view. Her oiled-up breasts bounced. My hands were on her hips and ass, unless I was gently stroking and pinching her nipples. As she grinded into me, I could feel the head of my cock rubbing against her cervix. After cumming a few more times, she collapsed next to me.
"Do you fuck my sister like that?" she asked, out of breath.
"I get a lot better with practice," I said, rising to my knees. I flipped Rachel onto her stomach, then grabbed her hips and pulled her into doggy position in front of me. She moved her knees further apart and looked back at me. I couldn't help but stare at the curve of her ass. It looked damn inviting, but those pussy lips peeking out below were too much to pass up on.
I stroked her ass and thighs, which were still glistening from the massage oil. The colors from the strobe lights bounced everywhere, and the music still vibrated all around us. I thought for a second that all this noise might wake up my wife in the room down the hall but knew she was knocked out cold till the morning. I had hours and hours left to play with Rachel, who was now swaying her hips back and forth in front of me.
"What are you waiting for?" Rachel growled.
I grabbed my cock and slid it up and down her pussy before inching myself into her. I fucked her slow at first, then picked up the pace. I gave her ass a solid spank, before really starting to pound her pussy. She was moaning and cumming continuously.